Composition for subirrigation pipes and filtering vessels



a (at/t Patented May" 26, 1925 FREDERICK H. BROWN,

PATENT OFFICE.

OF LAS VEGAS, NEVADA.

COMPOSITION FOR SUBIRRIGATION PIPES AND FILTIERING VESSELS.

F Drawing. Application filed July 22, 1920, Serial No. 398,302. Renewed March 10, 1925.

To all whom, it may concern:

Be it known that I, FREDERICK H. BROWN,

roun resh ve etable matter one part. is groun res'i vege a e matter may of Las Vegas, in the county of Clark, State be any vegetable matter, I prefer roots of Nevada, have invented a certain new such as otatoes. turni s and the l ike,i and 65 and useful Composition for Subirrigation Pipes and Filtering Vessels.

My invention relates to a composition of matter to be used in the manufacture of irrigation ipes, water filters and the like,

1 and a certain method of manufacturing irrigation pipe and water filters and the objects of my invention are: First, to provide a novel plastic compound which is [porous adapting it for use for sub-irrigation and filtering purposes; second, to provide a composition of this class which, when cured, provides a porous substance adapted for sub-irrigation pipes and water filters and the like; third, to provide a composition of 2 matter that when mixed together and permitted to stand, certain portions will de teriorate, leaving the space occupied by the same open or porous in form; fourth, to provide a novel method of making porous '25 pipe or filtering substance; fifth, to provide amethod which is economical of production; sixth, to provide a composition of this class which is very simple and economical of production, eflicient In its action and which will not readily deteriorate or get out of order.

Vith these and other objects in view as will appear hereinafter my invention consists of the certain novel method and composition as will be hereinafter described in detail and particularly set forth in the appended claims.

My invention consists in preparing a composition which is composed principally of 40 earth and vegetable matter as follows: earth four parts. (This earth consists of slllca linsoluble) thirty-eight and forty one hundredths parts, alumina iron oxide two and eighty hundredths parts, calcunrsnl:

hate one and seventeen hundredths parts calcium carbonate thirty-three and fortytwo "one hundredths parts, ma esi, w bonate one and nineteen hundredths parts, sodium carbonate two and eighty-nine one am 5' 211' s moisture ten and thirteen one hundre ths partsi, cement two parts,

ve "perceritf'iri bulk.

"" ese ingredients are prepared as follows: The earth, cement and charcoal are thoroughly mixed and agitated together in their dry form; then the ground vegetable matter is added together with enough lime water to make the-composition damp enough to stick together forming an adhesive mass; then this adhesive mass is formed into the form to be used either pipe form or filter form. If formed over any object the form may be removed while green but the mass should stand from three to four weeks to thoroughly harden and cure before it is ready for use.

Sub-irrigation pipes made from the foregoing materials as specified are xer orous permitting water to quickly seep and penetrate through walls thereof in all directions without softening, deteriorating or otherwise affecting the pipe and it has been found in practice that water carrying a great deal of sediment will pass through the walls without clogging or materially affecting the porosity of said pipe.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A plastic composition for the purpose described, consisting of a material analyzing substantially insoluble silica, thirty-eight per cent; aluminum and iron oxides, three per cent; calcium carbonate, thirty-three per cent; calcium sulphate, one per cent, 

